Home / 1,432,210.16-1,976,447.52-820,560.80

Finding the Fourth Proportional to 1,432,210.16, 1,976,447.52 and 820,560.80

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Solution

The fourth proportional to 1,432,210.16, 1,976,447.52 and 820,560.80 is: 1,132,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,210.16 : 1,976,447.52 = 820,560.80 : x
  2. Step 2: Convert to fraction form
    1,432,210.16/1,976,447.52 = 820,560.80/x
  3. Step 3: Cross multiply
    1,432,210.16x = 1,976,447.52 × 820,560.80
  4. Step 4: Simplify right side
    1,432,210.16x = 1,621,795,358,169.22
  5. Step 5: Solve for x
    x = 1,621,795,358,169.22/1,432,210.16
  6. Step 6: Final answer
    x = 1,132,372.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.